--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.core.commands/src/org/eclipse/core/commands/operations/IContextReplacingOperation.d	Sat Mar 14 18:23:29 2009 +0100
@@ -0,0 +1,43 @@
+/*******************************************************************************
+ * Copyright (c) 2005, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module org.eclipse.core.commands.operations.IContextReplacingOperation;
+
+import org.eclipse.core.commands.operations.IUndoContext;
+
+import java.lang.all;
+
+/**
+ * IContextReplacingOperation defines an interface for undoable operations that
+ * can replace one undo context with another undo context. It is used by
+ * operations, such as composite operations, where removing and adding an undo
+ * context would not have the same semantic as replacing one undo context with
+ * another.
+ *
+ * @since 3.2
+ *
+ */
+public interface IContextReplacingOperation {
+
+    /**
+     * Replace the undo context of the receiver with the provided replacement
+     * undo context.
+     * <p>
+     * This message has no effect if the original undo context is not present in
+     * the receiver.
+     *
+     * @param original the undo context which is to be replaced
+     * @param replacement the undo context which is replacing the original
+     *
+     */
+    void replaceContext(IUndoContext original, IUndoContext replacement);
+}